Two official music videos for Oresama's song 'Ookami Heart,' which served as the ending theme for 'Ookami Shoujo to Kuro Ouji.' The first video is the F.O.ver. release and was also used to promote the band's debut single, released on December 3, 2014. The second video is the standard release of the song and was used to promote the band's second single, released on May 20, 2015. Both videos feature completely unique and original animation created by Utomaru, a freelance illustrator and graphic designer based in Tokyo.